Details of Elean Plume Plotter

This page should be read in conjunction with How Plume Plotter Works. It provides more details specific to the Elean version of Plume Plotter.

Stacks and buildings

Building measurements are taken from the planning application. This image shows the layout of the stack and buildings modelled. North is at the top; colours and numbers indicate the height of the buildings and the stack.

Stack measurements

Most of these details were supplied by the Environment Agency:

The following values are used for albedo, Bowen ratio and roughness length:

Emissions

The emission rates of pollutants are the actual emission rates for 2015, taken from the National Atmospheric Emissions Inventory. They are listed below:

PollutantEmission rate
per second
Carbon dioxide44.08 g
Carbon monoxide34.47 g
Sulphur dioxide6.837 g
Oxides of nitrogen6.725 g
Hydrogen chloride764.5 mg
VOCs211.3 mg
PM10541.7 mg
PM2.5464.9 mg
PM1190.2 mg
PM0.152.57 mg
Lead1.753 mg
Zinc1.608 mg
Copper160.8 μg
Nickel160.8 μg
Chromium160.8 μg
Arsenic16.08 μg
Cadmium16.08 μg
Mercury15.79 μg
Dioxins840.3 pg

Background levels

The background levels of pollutants are taken from a recent air quality assessment for a planned incinerator at Waterbeach:

PollutantBackground
concentration per m3
Carbon dioxideN/A
Carbon monoxideN/A
Sulphur dioxideN/A
Oxides of nitrogen15.08 μg
Hydrogen chlorideN/A
VOCsN/A
PM10N/A
PM2.5N/A
PM1N/A
PM0.1N/A
LeadN/A
ZincN/A
CopperN/A
NickelN/A
ChromiumN/A
ArsenicN/A
CadmiumN/A
MercuryN/A
DioxinsN/A

Weather data

Weather data is taken from METAR reports from a local airport: RAF Lakenheath.

Upper air data is the latest reported by the Nottingham upper air station.

References